Photoinduced hydrophilic and photocatalytic response of hydrothermally grown TiO2 nanostructured thin films

被引:34
作者
Vernardou, Dimitra [1 ,2 ,3 ]
Kalogerakis, Giannis [3 ]
Stratakis, Emmanouil [3 ,4 ,5 ]
Kenanakis, George [1 ,2 ,6 ]
Koudoumas, Emmanouil [1 ,5 ]
Katsarakis, Nikos [1 ,2 ,4 ]
机构
[1] Technol Educ Inst Crete, Sch Appl Technol, Ctr Mat Technol & Laser, Iraklion 71004, Crete, Greece
[2] Technol Educ Inst Crete, Sch Appl Technol, Dept Sci, Iraklion 71004, Crete, Greece
[3] Univ Crete, Dept Mat Sci & Technol, Iraklion 71003, Crete, Greece
[4] Fdn Res & Technol Hellas, Inst Elect Struct & Laser, Iraklion 71110, Crete, Greece
[5] Technol Educ Inst Crete, Dept Elect Engn, Iraklion 71004, Crete, Greece
[6] Univ Crete, Dept Chem, Iraklion 71003, Crete, Greece
关键词
Hydrothermal growth; TiO2; Nanoparticles; Photoinduced properties; CHEMICAL-VAPOR-DEPOSITION; LOW-TEMPERATURE SYNTHESIS; TITANIUM-DIOXIDE; SOL-GEL; RUTILE; SURFACES; GLASS;
D O I
10.1016/j.solidstatesciences.2009.05.014
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
It is demonstrated that nanostructured titanium (IV) oxide (TiO2) films can be deposited on glass substrates at 95 degrees C using hydrothermal growth, their properties being greatly affected by the substrate materials. Anatase TiO2 films grown on ITO for deposition period of 50 h were observed to exhibit a very efficient reversible light-induced transition to super-hydrophilicity, reaching a nearly zero contact angle. Enhanced photocatalytic activity (65%) was found for the rutile TiO2 samples grown on microscope glass, possibly due to their higher roughness with respect to anatase grown on ITO. The effect of the substrate material used is discussed in terms of the TiO2 Phase and morphology control, for the best photoinduced hydrophilic and photocatalytic performance of the samples. (C) 2009 Elsevier Masson SAS. All rights reserved.
引用
收藏
页码:1499 / 1502
页数:4
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